How many Watts can WaterLily produce? Ryan Young April 03, 2019 16:59 Updated Follow WaterLily 12V can produce up to 30W. WaterLily USB can produce up to 15W. Related articles What kind of connectors does WaterLily use? Can I charge USB devices with 12V turbine? How many Volts can WaterLily produce? How does WaterLily compare to portable solar? Do I need a charge controller? Comments 0 comments Please sign in to leave a comment.